Automatic locomotive-tank-valve release.



c. w. IBACH. I AUTOMATIC LOCOMOTIVE TANK VALVE RELEASE.

, nrucmon msp mm. 30,4910. 1,27 0,760.

Patented June 25, 1918.

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Specification of Letter-alumna To all whom it may concern:

Be it known that I, Cmmnns I citizen of the United States, residing atTacoma, in the county of Pierce, State of Washingtomhave inventedcertain new and useful Improvements in Automatic Locomotive-Tank-ValveReleases, of which the fol lowing is a specification.

This invention relates to devices for controlling the valve in the tankof a locomotive, and has for its objects to provide such a device whichwill hold the valve open whenit is desired to have the valve 0 en andwhich will allow the valve to c ose when it is desired to close saidvalve; also a device whichwill automatically allow said .jvice's,mechanisms, and arrangements illusi trated in the accompanying drawings,in

'which:

Figure 1, is a side elevation, partly in section, showing my device inuse;

Fig. 2 is a perspective view thereof showing it in the position occupiedthereby when the valve is open; and Fig. 3 is a similar view showing itin the position occupied therebywhen the valve is closed, and also'showin the connection to the locomotive being roken as when thedraw-bar has parted.

Similar numerals of reference refer to similar-parts throughoutthe'several views.

When,in a railroad accident, the drawbar between the engine and the tankhas parted, the pipe connections are broken under the strain and thecontents of the tanks immediately flow freely}. through I the saidbrokerii pipes. In the case of an oil-burning 'locomotive this is verydangerous-fies well as expensivajsince. this oil is spread on the groundand-'"inay readily; be ignited, thus possibly destroying the' train anddoing great damage otherwise.- In order that this 'outflow'l may beautomatically istopped as soon= as the draw-bar between the engine. andtank has parted, I have devised ing described mechanism".

-The tank car 1 is attached'to the'flocomo,

tive 2 hy means of a draw-bar valve seat 4 is mounted in the bottom ttank and a valve .5 is mountedabovesaidseat and W. been, a

the follow adapted to close it. A strong spring 6 presses said valve 5downward on said seat to close the passage. A suitable pipe 7 leads fromthe seat 4 to the locomotive.

The valve 5.is held open, against the action of the spring 6, by a rod 8which passes through the top" of the tank and which is connected to thevalve stem by means of a chain or cable 9.. The rod 8 is secured in ahead 10, which is pivoted in the two arms 11 of my holding and releasingdevice. This consists of a member bent and formed so that when it isholding the valve open (as in Figs. 1 and'2) the two arms 11 are bentslightly back of the vertical so that the line of strain of said rod 8comes well forward of the lower corners of said arms-11; the arms arebent at their lower corners to forni short bases 12, and these are bentu ward and toward each other, as at 13 to orm a stem 14 which isslightly raised above the ta nk top; this stem extends to the front edgeof the tank and is then bent down at less than a right-angle to form theshort extension 15. A notch 16 is made in the lower side of theextension 15 and a spring 17 is secured to-the lower side of the part 15and extends downward to close over the notch 16.

A cable or rope '18 is secured to the roof 19 of the cab and passes overa ulley 20 and then down and terminates in a ink 21. This link 21 isadapted to 'lie in the notch 16 in Patented Jane '25, 1918. 4

the spring 6 will then pass outside of said corners thus allowing it toturn. This releases the rod 8 cable 9 and valve 5 so that the spring 6W11]. force the valve down on the seat 4. If'the draw-bar?) should bebroken, the locomotive will move away from the tank and the cable 18will then pull on the-extension 15 and turn the device as beforedescribed, thus automatically closing dowvn' 'saidvalve 5.

Having 'described;my invention, what I claim is; e

. 1:; Incombination, a valve,'means tending to close the'valve, a deviceoperatively connected to said valve and adapted in one posia deviceoperatively" connecte v and comprism a stem and an arm projectclosure ofthe valves 2. In combination, a valve, means acting to close saidvalve,.a hold and releasing to said valve ing substantia y at a rightangle from'one secured end of the stem, the other end of said 'stem' 1'5bein offset in a direction opfosite to that in w ich said arm extends,sal arm ada ted in one adjustment of said device to hol the a valveopen, and in: another adjustment to permit the valve to close underaction of 20 .said closing means, a spri ofi'set end of said stem, an acable releas-' abl secured by said spri to said device an adapted toactuate sai device to efiect I a closure of the valve.

" CHARLES W. IBACH.

carried by the I

